mx5x920bt Posted May 13, 2011 Report Share Posted May 13, 2011 Has anyone figured out how to connect the Speed Pulse (Pink wire) for a Mazda MX-5 with the Bose audio for a 2009? I have done a ton of research on this but haven't conclusively come to a point where I believe it is not possible. I have seen post for 2006+ MX-5's that suggest that VSS is not wired into the Bose audio harness. I have seen posts that say it is based on a microphone that senses road noise. I am fairly certain my stock Bose radio did adjust volume based on speed but can't seem to determine what wire (if any) is providing the signal. Any thoughts? Quote Link to post Share on other sites
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